html,
body {
    width: 100%;
    height: 100%;
    font: 100%/1.4em 'Calibre Light', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    margin: 0 auto;
    color: #222;
    -webkit-text-size-adjust: none;
    -webkit-font-smoothing: antialiased;
}

pre {
    margin: 0;
    font-size: 14px;
}

body,
.panel {
    background-color: #fff;
}

.menu {
    background-color: #1D1F20;
    background-image: linear-gradient(145deg, #1D1F20, #404348);
}

a {
    color: #4B5;
    text-decoration: none;
}

.menu a {
    color: #fff;
}

.menu a:hover {
    text-decoration: underline;
}

.menu-header {
    border-bottom: 1px solid #2a2d2f;
    padding: 20px 0 20px 60px;
    background: url('../images/github.png') no-repeat 15px 15px;
    background-size: 32px;
}

.menu-header-title {
    font-weight: 400;
    letter-spacing: 0.5px;
    margin: 0;
}

.menu-section {
    margin: 25px 0;
}

.menu-section-title {
    text-transform: uppercase;
    color: #85888d;
    font-weight: 200;
    font-size: 13px;
    letter-spacing: 1px;
    padding: 0 20px;
    margin:0;
}

.menu-section-list {
    padding:0;
    margin: 10px 0;
    list-style:none;
}

.menu-section-list a {
    display: block;
    padding: 10px 20px;
}

.menu-section-list a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    text-decoration: none;
}

.panel {
    text-align: center;
    padding-top: 5px;
    min-height: 100%;
}



/**
 * hamburger
 */
.btn-hamburger {
    border: none;
    position: absolute;
    top: 12px;
    left: 12px;
    outline:none;
    background: url('../images/menu.png') no-repeat left center;
}

.tooltip {
    font-size: 20px;
    line-height: 19px;
    display: inline-block;
    background: #4B5 url('../images/happy.png') no-repeat 135px 15px;
    color: #fff;
    padding: 10px 45px 10px 20px;
    border-radius: 4px;
    position: relative;
    left: 50px;
}



/**
 * Medium Screens
 */
@media all and (min-width:40em) {

    .btn-hamburger {
        top: 20px;
        left: 30px;
    }

    .panel-header {
        margin-top: 40px;
        width: 455px;
    }

    .title {
        font-size: 4.2em;
    }

    .subtitle {
        font-size: 1.8em;
    }

    .btn-download {
        margin-right: 20px;
    }

    .btn-fork {
        margin-left: 20px;
    }

}

.menu,
.slideout-menu {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
    z-index: 0;
    width: 256px;
    overflow-y: scroll;
    -webkit-overflow-scrolling: touch;
    display: none;
}

.panel,
.slideout-panel {
    position: relative;
    z-index: 1;
}

.slideout-open,
.slideout-open body {
    overflow: hidden;
}

.slideout-open .slideout-menu {
    display: block;
}